/* ========================
   Sinaps — Ana Stil
   Responsive: Mobile / Tablet / Desktop
   ======================== */

:root {
  --bg-0:#0A1428; --bg-1:#0f1d38; --bg-2:#162040; --bg-3:#1e2d50;
  --surface:#1e2130; --surface-2:#252a3a;
  --border:rgba(255,255,255,0.07); --border-accent:rgba(99,179,237,0.25);
  --text-primary:#f0f2f8; --text-secondary:#8891aa; --text-muted:#4a5068;
  --accent:#3B82F6; --accent-rgb:59,130,246; --accent-glow:rgba(59,130,246,0.18); --accent-2:#EC4899;
  --success:#34d399; --warning:#fbbf24; --danger:#f87171; --info:#60a5fa;
  --red:#ef4444; --orange:#f97316; --yellow:#eab308; --green:#22c55e; --blue:#3b82f6; --purple:#a855f7;
  --radius:12px; --radius-lg:18px;
  --shadow:0 4px 24px rgba(0,0,0,0.4); --shadow-accent:0 0 32px rgba(59,130,246,0.18);
  --font-display:'Syne',sans-serif; --font-body:'DM Sans',sans-serif;
  --sidebar-w:240px; --sidebar-collapsed-w:64px; --header-h:60px;
}

[data-theme="light"] {
  --bg-0:#eef0f7; --bg-1:#e4e7f2; --bg-2:#f5f6fb; --bg-3:#dde0ed;
  --surface:#ffffff; --surface-2:#f5f6fb;
  --border:rgba(0,0,0,0.09); --border-accent:rgba(91,138,240,0.3);
  --text-primary:#0f1120; --text-secondary:#4a5068; --text-muted:#8891aa;
  --accent-glow:rgba(91,138,240,0.1); --shadow:0 4px 24px rgba(0,0,0,0.07);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{height:100%}
body{font-family:var(--font-body);background:#0A1428;color:var(--text-primary);overflow:hidden;-webkit-font-smoothing:antialiased}


.loading-screen{position:fixed;inset:0;background:#ffffff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;z-index:9999;transition:opacity 0.4s ease}
.loading-screen.fade-out{opacity:0;pointer-events:none}
.loader-logo{display:flex;flex-direction:column;align-items:center;gap:16px}
.logo-text{font-family:var(--font-display);font-size:2rem;font-weight:700;color:#0A1428;letter-spacing:1px}
/* Sinaps loader ikon */
.sinaps-loader-icon{display:flex;align-items:center;gap:0;position:relative;height:52px}
.sinaps-dl,.sinaps-dr{position:absolute;pointer-events:none}
.sinaps-dl{left:-12px;top:50%;transform:translateY(-50%)}
.sinaps-dr{right:-12px;top:50%;transform:translateY(-50%)}
.sinaps-neuron{width:22px;height:22px;border-radius:50%;position:relative;z-index:2;animation:sinapsPulse 1.6s ease-in-out infinite}
.sinaps-neuron-left{background:#3B82F6;box-shadow:0 0 18px rgba(59,130,246,0.5)}
.sinaps-neuron-right{background:#EC4899;box-shadow:0 0 18px rgba(236,72,153,0.5);animation-delay:0.8s}
.sinaps-axon{width:54px;height:2px;background:linear-gradient(90deg,#3B82F6,rgba(251,191,36,0.4),#EC4899);position:relative}
.sinaps-spark{position:absolute;top:50%;left:50%;width:9px;height:9px;border-radius:50%;background:#FBBF24;box-shadow:0 0 10px #FBBF24;transform:translate(-50%,-50%);animation:sinapsSpark 1.6s ease-in-out infinite}
@keyframes sinapsPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.14)}}
@keyframes sinapsSpark{0%{transform:translate(-50%,-50%) translateX(-20px) scale(0.3);opacity:0}25%{opacity:1;transform:translate(-50%,-50%) translateX(-8px) scale(1)}50%{transform:translate(-50%,-50%) translateX(0) scale(1.4)}75%{opacity:1;transform:translate(-50%,-50%) translateX(8px) scale(1)}100%{transform:translate(-50%,-50%) translateX(20px) scale(0.3);opacity:0}}
.loader-bar{width:200px;height:3px;background:#e2e8f0;border-radius:99px;overflow:hidden}
.loader-fill{height:100%;background:linear-gradient(90deg,#3B82F6,#FBBF24,#EC4899);border-radius:99px;animation:loader-anim 2s ease-in-out infinite}
@keyframes loader-anim{0%{width:0%;margin-left:0%}50%{width:60%;margin-left:20%}100%{width:0%;margin-left:100%}}

/* TOAST */
#toast-container{position:fixed;top:20px;right:20px;z-index:99999;display:flex;flex-direction:column;gap:10px;pointer-events:none}
.toast{display:flex;align-items:center;gap:12px;padding:14px 18px;border-radius:var(--radius);min-width:260px;max-width:380px;background:var(--surface-2);border:1px solid var(--border);box-shadow:var(--shadow);font-size:0.875rem;animation:toast-in 0.3s ease;backdrop-filter:blur(12px);pointer-events:all}
.toast.success{border-left:3px solid var(--success)} .toast.error{border-left:3px solid var(--danger)} .toast.warning{border-left:3px solid var(--warning)} .toast.info{border-left:3px solid var(--info)}
.toast-icon{font-size:1.1rem;flex-shrink:0} .toast-msg{flex:1;color:var(--text-primary)} .toast-close{cursor:pointer;color:var(--text-muted);padding:2px 6px;border-radius:4px}
.toast.fade-out{animation:toast-out 0.3s ease forwards}
@keyframes toast-in{from{opacity:0;transform:translateX(60px)}to{opacity:1;transform:translateX(0)}}
@keyframes toast-out{from{opacity:1;transform:translateX(0)}to{opacity:0;transform:translateX(60px)}}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius);font-family:var(--font-body);font-weight:600;font-size:0.875rem;cursor:pointer;border:none;transition:all 0.2s ease;text-decoration:none;white-space:nowrap;line-height:1}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 4px 16px rgba(91,138,240,0.35)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 24px rgba(91,138,240,0.5)}
.btn-secondary{background:var(--surface-2);color:var(--text-primary);border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}
.btn-ghost{background:transparent;color:var(--text-secondary)}
.btn-ghost:hover{background:var(--bg-3);color:var(--text-primary)}
.btn-danger{background:rgba(248,113,113,0.15);color:var(--danger);border:1px solid rgba(248,113,113,0.3)}
.btn-success{background:rgba(52,211,153,0.15);color:var(--success);border:1px solid rgba(52,211,153,0.3)}
.btn-sm{padding:6px 14px;font-size:0.8rem;border-radius:8px} .btn-lg{padding:14px 28px;font-size:1rem}
.btn:disabled{opacity:0.5;cursor:not-allowed;transform:none!important}

/* INPUTS */
.input,.select,textarea{width:100%;padding:11px 14px;background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-family:var(--font-body);font-size:0.9rem;transition:border-color 0.2s}
.input:focus,.select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.input::placeholder{color:var(--text-muted)}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-label{font-size:0.82rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.05em}
.form-error{font-size:0.8rem;color:var(--danger)}

/* =============================================
   LAYOUT — Collapsible Sidebar
   ============================================= */
.app-layout{display:flex;height:100dvh;overflow:hidden}

.sidebar{
  width:var(--sidebar-w);flex-shrink:0;
  background:rgba(10,20,45,0.55);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-right:1px solid rgba(255,255,255,0.08);
  display:flex;flex-direction:column;
  position:fixed;top:0;left:0;bottom:0;
  z-index:200;overflow:hidden;
  transition:width 0.28s cubic-bezier(0.4,0,0.2,1),transform 0.28s cubic-bezier(0.4,0,0.2,1);
}

/* Collapsed desktop */
.sidebar.collapsed{width:var(--sidebar-collapsed-w)}
.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .nav-badge,
.sidebar.collapsed .user-info{opacity:0;width:0;overflow:hidden;white-space:nowrap;pointer-events:none}
.sidebar.collapsed .nav-item{justify-content:center;padding:10px 0}
.sidebar.collapsed .user-chip{justify-content:center;padding:8px}
.sidebar.collapsed .sidebar-logo{justify-content:center;padding:20px 0 16px}

/* Tooltip on collapsed hover */
.sidebar.collapsed .nav-item:hover::after{
  content:attr(data-label);
  position:absolute;left:calc(100% + 10px);
  background:var(--surface-2);color:var(--text-primary);
  border:1px solid var(--border);border-radius:8px;
  padding:6px 12px;font-size:0.82rem;white-space:nowrap;
  pointer-events:none;z-index:300;box-shadow:var(--shadow);
}

/* Toggle arrow button */
.sidebar-toggle-btn{
  position:absolute;top:18px;right:-14px;
  width:28px;height:28px;border-radius:50%;
  background:var(--bg-1);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;z-index:201;transition:all 0.2s;color:var(--text-muted);
}
.sidebar-toggle-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.sidebar-toggle-btn svg{width:14px;height:14px;transition:transform 0.28s}
.sidebar.collapsed .sidebar-toggle-btn svg{transform:rotate(180deg)}

.sidebar-logo{padding:20px 20px 16px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border);min-height:64px;flex-shrink:0;position:relative}
.sidebar-logo .logo-text{font-size:1.3rem;font-family:var(--font-display);font-weight:600;color:#FFFFFF;letter-spacing:0.5px;transition:opacity 0.2s,width 0.28s;white-space:nowrap}

.sidebar-nav{flex:1;padding:16px 12px;overflow-y:auto;overflow-x:hidden}
.sidebar.collapsed .sidebar-nav{padding:16px 8px}
.nav-section{margin-bottom:24px}
.nav-section-title{font-size:0.7rem;font-weight:700;letter-spacing:0.1em;color:var(--text-muted);text-transform:uppercase;padding:0 8px;margin-bottom:6px;white-space:nowrap;transition:opacity 0.2s,width 0.28s}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text-secondary);cursor:pointer;transition:all 0.15s ease;font-size:0.9rem;font-weight:500;margin-bottom:2px;position:relative;white-space:nowrap}
.nav-item:hover{background:var(--bg-2);color:var(--text-primary)}
.nav-item.active{background:var(--accent-glow);color:var(--accent);border:1px solid var(--border-accent)}
.nav-item svg{width:18px;height:18px;flex-shrink:0}
.nav-item span{transition:opacity 0.2s,width 0.28s;overflow:hidden}
.nav-badge{margin-left:auto;background:var(--accent);color:#fff;border-radius:99px;padding:2px 7px;font-size:0.7rem;font-weight:700;transition:opacity 0.2s}
.sidebar-footer{padding:16px;border-top:1px solid var(--border);flex-shrink:0}
.user-chip{display:flex;align-items:center;gap:10px;padding:10px;border-radius:var(--radius);background:var(--bg-2);cursor:pointer;transition:background 0.15s}
.user-chip:hover{background:var(--bg-3)}
.user-avatar{width:36px;height:36px;border-radius:50%;flex-shrink:0;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.9rem;color:#fff}
.user-info{flex:1;min-width:0;transition:opacity 0.2s,width 0.28s;overflow:hidden}
.user-name{font-weight:600;font-size:0.85rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-role{font-size:0.75rem;color:var(--text-muted)}

.main-content{
  margin-left:var(--sidebar-w);flex:1;min-height:0;
  display:flex;flex-direction:column;
  height:100dvh;overflow:hidden;
  transition:margin-left 0.28s cubic-bezier(0.4,0,0.2,1);
}
.main-content.sidebar-collapsed{margin-left:var(--sidebar-collapsed-w)}

.top-bar{
  height:var(--header-h);background:rgba(10,20,45,0.55);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.08);
  display:flex;align-items:center;padding:0 20px;gap:12px;position:sticky;top:0;z-index:50;flex-shrink:0;
}
.top-bar-title{font-family:var(--font-display);font-weight:700;font-size:1.1rem;flex:1}

.sidebar-hamburger{
  display:none;width:36px;height:36px;border-radius:10px;
  background:var(--bg-2);border:1px solid var(--border);
  align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:all 0.15s;
}
.sidebar-hamburger:hover{background:var(--bg-3)}
.sidebar-hamburger svg{width:18px;height:18px}

.page-content{flex:1;min-height:0;padding:20px 24px;overflow-y:auto;background:transparent}

/* CARDS */
.card{background:rgba(15,25,55,0.55);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,0.09);border-radius:var(--radius-lg);padding:20px;transition:border-color 0.2s}
.card:hover{border-color:rgba(99,179,237,0.3)}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-title{font-family:var(--font-display);font-weight:700;font-size:1rem}
.stat-card{background:rgba(15,25,55,0.55);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,0.09);border-radius:var(--radius-lg);padding:18px;display:flex;flex-direction:column;gap:6px}
.stat-value{font-family:var(--font-display);font-size:2rem;font-weight:800;line-height:1}
.stat-label{font-size:0.78rem;color:var(--text-muted);font-weight:500}
.stat-change{font-size:0.78rem}
.stat-change.up{color:var(--success)} .stat-change.down{color:var(--danger)}

/* GRID */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}

/* SCHEDULE */
.schedule-container{overflow-x:auto}

/* ── SCHEDULE MOBILE CARD VIEW ─────────────────────────────────────────── */
.schedule-card-list { display: none; flex-direction: column; gap: 12px; }
.schedule-day-card  { background: var(--bg-2); border-radius: 14px; border: 1px solid var(--border); overflow: hidden; }
.schedule-day-header{
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; background: var(--bg-3);
  font-family: var(--font-display); font-weight: 700; font-size: 0.9rem;
}
.schedule-day-header.today { background: var(--accent-glow); border-bottom: 1px solid var(--border-accent); }
.schedule-day-etuts { padding: 10px 12px; display: flex; flex-direction: column; gap: 6px; }
.schedule-day-empty { padding: 10px 14px; color: var(--text-muted); font-size: 0.8rem; }

/* Yanlışlarım & Konular sekme stilleri */
.mistakes-subject-card {
  background: var(--bg-2); border-radius: 12px; border: 1px solid var(--border);
  padding: 14px; cursor: pointer; transition: border-color 0.15s;
}
.mistakes-subject-card:hover { border-color: var(--accent); }
.mistakes-topic-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px; background: var(--bg-2); border-radius: 8px;
  margin-bottom: 6px; font-size: 0.85rem;
}
.mistakes-topic-row .topic-count {
  font-weight: 700; color: var(--danger); font-size: 0.8rem;
}
.konular-progress-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; background: var(--bg-2); border-radius: 8px; margin-bottom: 6px;
}
.konular-progress-row .kp-label { flex: 1; font-size: 0.85rem; }
.konular-progress-row .kp-count { font-size: 0.78rem; color: var(--text-muted); white-space: nowrap; }
.konular-progress-row .kp-bar   { width: 80px; }

.schedule-table{border-collapse:collapse;width:100%;min-width:600px}
.schedule-table th,.schedule-table td{padding:8px 10px;border:1px solid var(--border);vertical-align:top;min-width:110px}
.schedule-table th{background:var(--bg-2);font-family:var(--font-display);font-weight:700;font-size:0.78rem;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-secondary)}
.etut-slot{background:var(--bg-2);border-radius:8px;padding:8px 10px;margin-bottom:6px;border-left:3px solid var(--accent);font-size:0.78rem;cursor:pointer;transition:all 0.15s ease;position:relative}
.etut-slot:hover{transform:translateX(2px)}
.etut-slot.completed{opacity:0.5;text-decoration:line-through}
.etut-slot .etut-subject{font-weight:700;margin-bottom:2px}
.etut-slot .etut-meta{color:var(--text-muted);font-size:0.72rem}
.etut-slot .etut-points{position:absolute;top:6px;right:8px;font-size:0.68rem;font-weight:700}

/* MODAL */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.7);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px;animation:fade-in 0.2s ease}
.modal{background:rgba(15,25,55,0.75);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,0.1);border-radius:var(--radius-lg);padding:28px;width:100%;max-width:520px;max-height:88dvh;overflow-y:auto;box-shadow:var(--shadow);animation:modal-in 0.25s ease}
.modal-lg{max-width:720px}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.modal-title{font-family:var(--font-display);font-weight:700;font-size:1.1rem}
.modal-close{cursor:pointer;padding:6px;border-radius:8px;color:var(--text-muted);transition:all 0.15s}
.modal-close:hover{background:var(--bg-3);color:var(--text-primary)}
.modal-footer{display:flex;gap:10px;justify-content:flex-end;margin-top:24px;padding-top:16px;border-top:1px solid var(--border)}
@keyframes modal-in{from{opacity:0;transform:translateY(-16px) scale(0.97)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes fade-in{from{opacity:0}to{opacity:1}}

/* BADGES, TABS, ETC */
.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:99px;font-size:0.75rem;font-weight:600}
.badge-red{background:rgba(239,68,68,.15);color:var(--red);border:1px solid rgba(239,68,68,.3)}
.badge-orange{background:rgba(249,115,22,.15);color:var(--orange);border:1px solid rgba(249,115,22,.3)}
.badge-yellow{background:rgba(234,179,8,.15);color:var(--yellow);border:1px solid rgba(234,179,8,.3)}
.badge-green{background:rgba(34,197,94,.15);color:var(--green);border:1px solid rgba(34,197,94,.3)}
.badge-blue{background:rgba(59,130,246,.15);color:var(--blue);border:1px solid rgba(59,130,246,.3)}
.badge-purple{background:rgba(168,85,247,.15);color:var(--purple);border:1px solid rgba(168,85,247,.3)}

.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:20px;flex-wrap:wrap}
.tab-btn{padding:10px 16px;background:transparent;border:none;color:var(--text-muted);font-family:var(--font-body);font-size:0.875rem;font-weight:600;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;transition:all 0.15s}
.tab-btn:hover{color:var(--text-primary)} .tab-btn.active{color:var(--accent);border-color:var(--accent)}

.progress-bar{background:var(--bg-3);border-radius:99px;height:8px;overflow:hidden}
.progress-fill{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width 0.5s ease}

.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;gap:12px;color:var(--text-muted);text-align:center}
.empty-state svg{opacity:0.3} .empty-state h3{font-family:var(--font-display);color:var(--text-secondary)}

.data-table{width:100%;border-collapse:collapse}
.data-table th{padding:10px 14px;background:var(--bg-2);border-bottom:1px solid var(--border);font-size:0.78rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-muted);text-align:left}
.data-table td{padding:12px 14px;border-bottom:1px solid var(--border);font-size:0.875rem}
.data-table tr:hover td{background:var(--bg-2)}

.theme-toggle{background:var(--bg-2);border:1px solid var(--border);border-radius:99px;padding:4px;display:flex;cursor:pointer}
.theme-opt{padding:4px 10px;border-radius:99px;font-size:0.78rem;transition:all 0.15s}
.theme-opt.active{background:var(--accent);color:#fff}

.score-chip{display:inline-flex;gap:6px;align-items:center;padding:4px 12px;border-radius:99px;font-size:0.8rem;font-weight:700;background:var(--bg-2);border:1px solid var(--border)}
.divider{height:1px;background:var(--border);margin:16px 0}

::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bg-3);border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}

/* AI/CHAT */
.chat-container{display:flex;flex-direction:column;height:calc(100dvh - 140px)}
.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}
.chat-msg{display:flex;gap:10px;max-width:78%}
.chat-msg.self{flex-direction:row-reverse;align-self:flex-end} .chat-msg.other{align-self:flex-start}
.msg-avatar{width:32px;height:32px;border-radius:50%;background:var(--accent-glow);border:1px solid var(--border-accent);display:flex;align-items:center;justify-content:center;font-size:0.75rem;font-weight:700;flex-shrink:0}
.msg-bubble{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:10px 14px;font-size:0.875rem}
.chat-msg.self .msg-bubble{background:var(--accent-glow);border-color:var(--border-accent)}
.msg-name{font-size:0.72rem;font-weight:700;color:var(--text-muted);margin-bottom:3px}
.msg-time{font-size:0.7rem;color:var(--text-muted);margin-top:3px}
.chat-input-area{padding:12px;border-top:1px solid var(--border);display:flex;gap:10px;align-items:flex-end}
.chat-input-area .input{resize:none;max-height:120px}
.ai-chat{display:flex;flex-direction:column;height:100%;background:var(--bg-1);border-radius:var(--radius-lg);border:1px solid var(--border)}
.ai-chat-header{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}
.ai-indicator{width:10px;height:10px;border-radius:50%;background:var(--success);box-shadow:0 0 8px var(--success);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.ai-messages{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.ai-msg{display:flex;gap:8px} .ai-msg.user{flex-direction:row-reverse}
.ai-bubble{max-width:80%;padding:10px 14px;border-radius:12px;font-size:0.85rem;line-height:1.5}
.ai-msg.assistant .ai-bubble{background:var(--surface-2);border:1px solid var(--border)}
.ai-msg.user .ai-bubble{background:var(--accent-glow);border:1px solid var(--border-accent)}
.ai-typing{display:flex;gap:4px;padding:10px 14px;background:var(--surface-2);border-radius:12px;border:1px solid var(--border);width:fit-content}
.dot{width:6px;height:6px;border-radius:50%;background:var(--text-muted);animation:bounce 1.4s infinite}
.dot:nth-child(2){animation-delay:.2s} .dot:nth-child(3){animation-delay:.4s}
@keyframes bounce{0%,80%,100%{transform:scale(.8)}40%{transform:scale(1.2)}}
.ai-input-area{padding:12px;border-top:1px solid var(--border);display:flex;gap:8px}
.leaderboard-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:var(--radius);background:var(--bg-2);margin-bottom:8px}
.rank-num{font-family:var(--font-display);font-weight:800;font-size:1.1rem;width:28px;text-align:center;color:var(--text-muted)}
.rank-num.gold{color:#f59e0b} .rank-num.silver{color:#94a3b8} .rank-num.bronze{color:#b45309}

/* UTILITY */
.flex{display:flex} .flex-col{flex-direction:column} .items-center{align-items:center}
.justify-between{justify-content:space-between} .gap-2{gap:8px} .gap-3{gap:12px} .gap-4{gap:16px}
.mt-4{margin-top:16px} .mt-6{margin-top:24px} .mb-4{margin-bottom:16px}
.text-sm{font-size:.875rem} .text-xs{font-size:.78rem} .font-bold{font-weight:700}
.text-muted{color:var(--text-muted)} .text-accent{color:var(--accent)} .text-success{color:var(--success)} .text-danger{color:var(--danger)}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hidden{display:none!important} .w-full{width:100%}
.level-red{color:var(--red)} .level-orange{color:var(--orange)} .level-yellow{color:var(--yellow)}
.level-green{color:var(--green)} .level-blue{color:var(--blue)} .level-purple{color:var(--purple)}

/* JSON BOX */
.json-template-box{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.json-template-header{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-bottom:1px solid var(--border)}
.json-template-pre{padding:14px;font-family:'Courier New',monospace;font-size:0.78rem;line-height:1.6;color:var(--text-secondary);white-space:pre;overflow-x:auto;margin:0}

/* =============================================
   BOTTOM NAV — hidden by default
   ============================================= */
.bottom-nav{display:none}
.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:199;backdrop-filter:blur(2px)}
.sidebar-backdrop.active{display:block}

/* =============================================
   TABLET  769px–1100px
   ============================================= */
@media (min-width:769px) and (max-width:1100px){
  :root{--sidebar-w:64px}
  .sidebar{width:64px}
  .sidebar .logo-text,.sidebar .nav-section-title,.sidebar .nav-item span,.sidebar .nav-badge,.sidebar .user-info{opacity:0;width:0;overflow:hidden;white-space:nowrap;pointer-events:none}
  .sidebar .nav-item{justify-content:center;padding:10px 0}
  .sidebar .user-chip{justify-content:center;padding:8px}
  .sidebar .sidebar-logo{justify-content:center;padding:20px 0 16px}
  .sidebar.expanded-tablet{width:220px!important}
  .sidebar.expanded-tablet .logo-text,
  .sidebar.expanded-tablet .nav-section-title,
  .sidebar.expanded-tablet .nav-item span,
  .sidebar.expanded-tablet .nav-badge,
  .sidebar.expanded-tablet .user-info{opacity:1;width:auto;overflow:visible;pointer-events:auto}
  .sidebar.expanded-tablet .nav-item{justify-content:flex-start;padding:10px 12px}
  .sidebar.expanded-tablet .user-chip{justify-content:flex-start;padding:10px}
  .sidebar.expanded-tablet .sidebar-logo{justify-content:flex-start;padding:20px 20px 16px}
  .main-content{margin-left:64px}
  .main-content.sidebar-expanded-tablet{margin-left:220px;transition:margin-left 0.28s}
  .page-content{padding:16px}
  .grid-4{grid-template-columns:1fr 1fr;gap:12px}
  .grid-3{grid-template-columns:1fr 1fr}
  .stat-value{font-size:1.6rem}
  .top-bar{padding:0 16px;gap:10px}
  .top-bar-title{font-size:1rem}
  .card{padding:16px}
}

/* =============================================
   MOBILE  ≤768px
   ============================================= */
@media (max-width:768px){
  body{overflow:hidden}

  /* Sidebar slides in from left */
  .sidebar{width:268px!important;transform:translateX(-100%);box-shadow:none}
  .sidebar.mobile-open{transform:translateX(0);box-shadow:8px 0 40px rgba(0,0,0,0.45)}
  .sidebar .logo-text,.sidebar .nav-section-title,.sidebar .nav-item span,.sidebar .nav-badge,.sidebar .user-info{
    opacity:1!important;width:auto!important;overflow:visible!important;pointer-events:auto!important;white-space:normal!important}
  .sidebar .nav-item{justify-content:flex-start!important;padding:12px 14px!important}
  .sidebar .user-chip{justify-content:flex-start!important;padding:10px!important}
  .sidebar .sidebar-logo{justify-content:flex-start!important;padding:20px 20px 16px!important}
  .sidebar-toggle-btn{display:none!important}

  /* Main content */
  .main-content{margin-left:0!important;height:100dvh}
  .sidebar-hamburger{display:flex}
  .top-bar{padding:0 12px;gap:10px}
  .top-bar-title{font-size:0.95rem}

  /* Page with bottom nav space */
  .page-content{
    padding:12px;
    padding-bottom:calc(68px + env(safe-area-inset-bottom,8px));
    overflow-y:auto;
  }

  /* Grids */
  .grid-4{grid-template-columns:1fr 1fr!important;gap:10px}
  .grid-3,.grid-2{grid-template-columns:1fr!important;gap:10px}

  /* Cards */
  .card{padding:14px;border-radius:14px}
  .card-title{font-size:0.9rem}
  .stat-card{padding:14px}
  .stat-value{font-size:1.4rem!important}
  .stat-label{font-size:0.72rem}

  /* Buttons */
  .btn-lg{padding:12px 20px;font-size:0.9rem}

  /* Table scroll */
  table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .data-table{font-size:0.75rem}
  .data-table th,.data-table td{padding:8px 8px}

  /* Modal sheet */
  .modal-overlay{align-items:flex-end;padding:0}
  .modal{border-radius:20px 20px 0 0;max-width:100%;max-height:90dvh;padding:24px 20px;padding-bottom:calc(24px + env(safe-area-inset-bottom,0px));animation:sheet-in 0.3s ease}
  @keyframes sheet-in{from{transform:translateY(100%)}to{transform:translateY(0)}}

  /* BOTTOM NAV */
  .bottom-nav{
    display:flex!important;
    position:fixed;bottom:0;left:0;right:0;
    height:calc(60px + env(safe-area-inset-bottom,0px));
    padding-bottom:env(safe-area-inset-bottom,0px);
    background:rgba(10,20,45,0.7);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-top:1px solid rgba(255,255,255,0.08);
    z-index:198;align-items:center;justify-content:space-around;
    padding-left:4px;padding-right:4px;
  }
  .bottom-nav-item{
    display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;flex:1;height:100%;cursor:pointer;
    border-radius:12px;transition:all 0.15s;padding:6px 2px;
    position:relative;color:var(--text-muted);
  }
  .bottom-nav-item.active{color:var(--accent)}
  .bottom-nav-item.active::before{
    content:'';position:absolute;top:6px;
    width:28px;height:3px;
    background:var(--accent);border-radius:99px;
  }
  .bottom-nav-item svg{width:21px;height:21px;transition:transform 0.15s}
  .bottom-nav-item.active svg{transform:scale(1.12)}
  .bottom-nav-label{font-size:0.62rem;font-weight:600;letter-spacing:0.01em;line-height:1}


  /* Schedule: masaüstü tablo gizle, kart görünümü göster */
  .schedule-container .schedule-table { display: none !important; }
  .schedule-card-list { display: flex !important; }

  /* Etüt */
  .etut-slot{padding:10px 12px;font-size:0.78rem}

  /* Tabs */
  .tabs{overflow-x:auto;flex-wrap:nowrap;padding-bottom:2px}
  .tab-btn{padding:8px 12px;font-size:0.82rem;white-space:nowrap}

  /* Toast */
  #toast-container{top:auto;bottom:80px;right:10px;left:10px}
  .toast{min-width:unset;width:100%}
}

/* ── Soru-Cevap Odaları responsive ───────────────────────── */
#rooms-container {
  display: flex;
  gap: 16px;
}
#room-list-panel {
  width: 220px;
  flex-shrink: 0;
}
@media (max-width: 640px) {
  #rooms-container {
    flex-direction: column;
    height: auto !important;
  }
  #room-list-panel {
    width: 100%;
    max-height: 280px;
  }
  #chat-area {
    min-height: 420px;
  }
}

/* ── Chat mesaj baloncuğu ─────────────────────────────────── */
.chat-msg {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.chat-msg.self {
  flex-direction: row-reverse;
}
.msg-bubble img {
  border-radius: 8px;
  max-width: 220px;
  display: block;
}

/* ===== LIGHT TEMA — Glassmorphism Overrides ===== */
[data-theme="light"] .sidebar {
  background: rgba(220,235,250,0.60);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid rgba(0,0,0,0.08);
}
[data-theme="light"] .top-bar {
  background: rgba(220,235,250,0.60);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
[data-theme="light"] .card,
[data-theme="light"] .stat-card {
  background: rgba(255,255,255,0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0,0,0,0.08);
}
[data-theme="light"] .modal {
  background: rgba(240,245,255,0.80);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0,0,0,0.08);
}
[data-theme="light"] .bottom-nav {
  background: rgba(220,235,250,0.70);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(0,0,0,0.08);
}
/* ================================================
   SINAPS BOT — ONBOARDING STYLES
   Bu bloğu main.css dosyasının en sonuna ekle
   ================================================ */

/* Tam sayfa katman */
#onboarding-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ob-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.82);
  backdrop-filter: blur(6px);
}

/* Kart */
.ob-card {
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
  border: 1px solid rgba(0, 245, 255, 0.25);
  border-radius: 24px;
  width: min(480px, 92vw);
  padding: 32px 28px 24px;
  box-shadow: 0 0 60px rgba(124, 58, 237, 0.3), 0 0 20px rgba(0, 245, 255, 0.1);
}
.ob-animate-in {
  animation: obSlideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}
@keyframes obSlideUp {
  from { opacity: 0; transform: translateY(30px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Header: bot + adım noktaları */
.ob-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}
.sinaps-bot-face {
  width: 100px;
  height: 100px;
  filter: drop-shadow(0 0 12px rgba(0, 245, 255, 0.4));
  animation: obBotPulse 3s ease-in-out infinite;
}
@keyframes obBotPulse {
  0%, 100% { filter: drop-shadow(0 0 12px rgba(0, 245, 255, 0.4)); }
  50%       { filter: drop-shadow(0 0 22px rgba(167, 139, 250, 0.6)); }
}

/* Adım noktaları */
.ob-step-dots {
  display: flex;
  gap: 10px;
}
.ob-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  transition: all 0.3s;
}
.ob-dot-active {
  background: #00f5ff;
  box-shadow: 0 0 8px #00f5ff;
  transform: scale(1.2);
}
.ob-dot-done {
  background: #7c3aed;
}

/* Konuşma balonu */
.ob-bubble {
  background: rgba(0, 245, 255, 0.05);
  border: 1px solid rgba(0, 245, 255, 0.15);
  border-radius: 16px;
  padding: 18px 20px;
  margin-bottom: 24px;
}
.ob-bubble-text {
  color: var(--text-primary, #e2e8f0);
  font-size: 0.95rem;
  line-height: 1.7;
}
.ob-hi {
  display: block;
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: #00f5ff;
}

/* Butonlar */
.ob-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.ob-btn-skip {
  background: none;
  border: none;
  color: rgba(255,255,255,0.35);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
  transition: color 0.2s;
}
.ob-btn-skip:hover { color: rgba(255,255,255,0.6); }

.ob-btn-primary {
  background: linear-gradient(135deg, #7c3aed, #00f5ff40);
  border: 1px solid rgba(0, 245, 255, 0.4);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.15s, box-shadow 0.15s;
}
.ob-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
}
.ob-arrow { font-size: 1.1rem; }

/* ── Yüzen bot ipucu balonu ── */
#ob-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 8888;
  animation: obSlideUp 0.35s ease forwards;
}
.ob-float-inner {
  background: linear-gradient(135deg, #1e1b4b, #0f172a);
  border: 1px solid rgba(0, 245, 255, 0.3);
  border-radius: 18px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 340px;
  box-shadow: 0 8px 32px rgba(124, 58, 237, 0.35);
  position: relative;
}
.ob-float-bot { width: 48px; height: 48px; flex-shrink: 0; }
.ob-float-bot svg { width: 48px; height: 48px; }
.ob-float-msg {
  color: #e2e8f0;
  font-size: 0.85rem;
  line-height: 1.5;
  flex: 1;
}
.ob-float-btn {
  background: linear-gradient(135deg, #7c3aed, #00f5ff30);
  border: 1px solid rgba(0,245,255,0.3);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.ob-float-btn:hover { opacity: 0.85; }
.ob-float-close {
  position: absolute;
  top: 8px;
  right: 10px;
  background: none;
  border: none;
  color: rgba(255,255,255,0.3);
  font-size: 0.75rem;
  cursor: pointer;
  line-height: 1;
}
.ob-float-close:hover { color: rgba(255,255,255,0.6); }